Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A picture black insertion method of a display device, comprising: outputting a dynamic refresh signal via a dynamic refresh unit of a drive circuit, so as to dynamically control a frame time of each of a plurality of frames displayed on a display device; computing a black insertion time signal via a timer in the drive circuit according to the frame time of a previous frame of the display device; outputting a black insertion drive signal via a black insertion drive unit in the drive circuit according to the black insertion time signal, so as to perform black insertion on the frames; outputting a backlight control signal via a backlight control unit on the display device according to the black insertion drive signal; and controlling a backlight controller in the display device according to the backlight control signal, so as to selectively output or turn off a backlight source and dynamically adjust black insertion time in the frame time of a subsequent frame of the display device, or so as to selectively output or turn off a backlight source, so that the display device performs black insertion at a fixed frequency, and a time for turning off the backlight source in each period is a constant.
Display technology, specifically addressing motion blur and image quality in display devices. This invention provides a method for dynamically controlling black insertion to improve visual experience. The method involves a drive circuit that generates a dynamic refresh signal to adjust the frame time of displayed frames. A timer within the drive circuit calculates a black insertion time signal based on the frame time of the preceding frame. This black insertion time signal is then used to generate a black insertion drive signal, which controls the timing of black frames inserted between displayed content frames. Furthermore, a backlight control signal is generated based on the black insertion drive signal. This signal is sent to a backlight controller in the display device. The backlight controller then selectively turns the backlight source on or off. This allows for dynamic adjustment of the black insertion duration within the frame time of subsequent frames, or alternatively, maintains a constant duration for turning off the backlight at a fixed frequency, ensuring consistent black insertion.
2. A picture black insertion method of a display device, comprising: outputting a dynamic refresh signal via a dynamic refresh unit of a drive circuit, so as to dynamically control a frame time of each of a plurality of frames displayed on a display device; computing a black insertion time signal via a timer in the drive circuit according to the frame time of a previous frame of the display device; outputting a black insertion drive signal via a black insertion drive unit in the drive circuit according to the black insertion time signal, so as to perform black insertion on the frames; outputting a panel signal via a signal control unit in the drive circuit according to the black insertion drive signal; and adjusting black insertion time in the frame time of a subsequent frame of the display device dynamically according to the panel signal.
This invention relates to a dynamic black insertion technique for display devices, addressing the challenge of optimizing display performance by dynamically adjusting black insertion time to reduce motion blur and improve visual quality. The method involves a drive circuit that controls the display's frame timing and black insertion operations. A dynamic refresh unit generates a refresh signal to regulate the frame time for each displayed frame. A timer in the drive circuit calculates a black insertion time signal based on the frame time of the preceding frame. A black insertion drive unit then outputs a drive signal to perform black insertion, inserting black frames or intervals between active frames to reduce motion artifacts. A signal control unit processes this drive signal to generate a panel signal, which is used to dynamically adjust the black insertion time in subsequent frames. This adaptive approach ensures that black insertion is optimized in real-time, improving display smoothness and reducing power consumption. The system dynamically responds to varying frame times, ensuring consistent performance across different display conditions.
3. A picture black insertion method of a display device, comprising: outputting a dynamic refresh signal via a dynamic refresh unit of a drive circuit, so as to dynamically control a frame time of each of a plurality of frames displayed on a display device; computing a black insertion time signal via a timer in the drive circuit according to the frame time of a previous frame of the display device; outputting a black insertion drive signal via a black insertion drive unit in the drive circuit according to the black insertion time signal, so as to perform black insertion on the frames; and outputting a panel signal to a display panel of the display device via a signal control unit in the drive circuit according to the black insertion drive signal, so that the display device performs black insertion at a fixed frequency, and a black insertion time for the display device to perform black insertion in each period is a constant.
This invention relates to a method for inserting black frames in a display device to reduce motion blur and improve visual quality. The method dynamically controls the frame time of each displayed frame using a dynamic refresh signal generated by a drive circuit. A timer in the drive circuit calculates a black insertion time signal based on the frame time of the previous frame. A black insertion drive unit then generates a black insertion drive signal according to this time signal, which is used to insert black frames. A signal control unit outputs a panel signal to the display panel, ensuring black insertion occurs at a fixed frequency with a constant black insertion time per period. The dynamic adjustment of frame times allows the display to maintain consistent black insertion timing, enhancing motion clarity without disrupting the display's refresh rate stability. This approach is particularly useful for high-refresh-rate displays where motion blur is a concern. The method ensures that black insertion is synchronized with the display's frame timing, providing a balanced trade-off between motion clarity and power efficiency.
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May 26, 2020
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